Durable nylon upper (Uptowner X™ and Explorer™) or sturdy polyester (Navigator 5™) with waterproof membrane, protects expensive work boots from harsh weather environments, reducing your overall footwear spend. Polyurethane foam insulated inner keeps workers’ feet warm in the harshest of cold weather conditions. Extra large gusset provides ease in putting on or taking off overshoes, allowing workers to efficiently prepare for work. Compatible with orthopedic and custom footwear; it will fit a wide range of shoe design for workers’ comfort. Perma outsole offers very good traction in tough weather conditions to reduce the risk of slips and falls for workers safety. Vibram® Ninja™ outsole offers superior traction on ice, snow and slush helping to reduce worker injury from slips and falls. Unique ankle strap provides a snug fit to prevent overshoes from slipping that may cause slips and falls.